bell and spigot reducerbellandspigotreducer承: bear; hold; carry插: stick in; insert式: type; style大小: big or small头: 5点就得动身 have to start before ...下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:承插式大小头,即可在微信中查询翻译